Vol. 38 No. 2 (2024):
Articles

Field evaluation of biostimulants on growth, flowering, yield, and quality of snap beans in subtropical environment

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  • S.H. Brengi,
  • I. Abouelsaad,
  • R.M. Mahdy,
  • A.A. Khadr
S.H. Brengi
Horticulture Department, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt.
I. Abouelsaad
¹ Horticulture Department, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt. ² Faculty of Desert Agriculture, King Salman International University, Ras Sedr 46618, Egypt-
R.M. Mahdy
Horticulture Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt.
A.A. Khadr
Horticulture Department, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt.
DOI: https://doi.org/10.36253/ahsc-15535
Categories

Published 2024-07-01

Keywords

  • Chitosan,
  • potassium silicate,
  • 6-benzylaminopurine,
  • snap bean,
  • triacontanol

How to Cite

Brengi, S., Abouelsaad, I., Mahdy, R., & Khadr, A. (2024). Field evaluation of biostimulants on growth, flowering, yield, and quality of snap beans in subtropical environment. Advances in Horticultural Science, 38(2), 141–153. https://doi.org/10.36253/ahsc-15535

Copyright (c) 2024 Ibrahim Abouelsaad

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Abstract

The cultivation of snap beans (Phaseolus vulgaris L.) in subtropical regions faces environmental challenges leading to potential declines in yield. This study explores the efficacy of biostimulants as a solution, specifically investigating spraying treatments with 6-benzylaminopurine (6-BA), chitosan (Ch), triacontanol (TRIA), and potassium silicate (KSi) on the snap bean cv. Paulista. Over two growing seasons with late sowing and elevated summer temperatures, the research assesses growth, flowering, yield, and quality. Notably, 5 ppm TRIA demonstrates the most significant impact on plant growth and leaf nutrient content. Treatments with 40 ppm 6-BA, 5 ppm TRIA, or 200 ppm KSi exhibit notable effects on inflorescence flower count and flowers per plant. These treatments prove most effective for crucial green pod yield measures, including the number and weight of marketable pods. Moreover, 40 ppm 6-BA or 5 ppm TRIA significantly enhances pod characteristics, such as length, diameter, and weight, consistently improving over both seasons. Particularly, 5 ppm TRIA outperforms in enhancing the chemical quality of pods throughout the study. Overall, the findings suggest that the application of 5 ppm TRIA offers the most favorable enhancements for the growth, flowering, productivity, and quality of snap bean plants in subtropical field conditions.

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